/*
 * Copyright 2002-2014 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cn.featherfly.web.spring.servlet.view.json;

import java.util.Map;

import org.springframework.web.servlet.view.json.MappingJackson2JsonView;

import com.fasterxml.jackson.annotation.JsonInclude.Include;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * ObjectJacksonJsonView.
 *
 * @author zhongj
 */
public class ObjectJacksonJsonView extends MappingJackson2JsonView {

    /**
     */
    public ObjectJacksonJsonView() {
        this(null);
    }

    /**
     * @param resultObject resultObject
     */
    public ObjectJacksonJsonView(Object resultObject) {
        getObjectMapper().setSerializationInclusion(Include.NON_EMPTY);
        setResult(resultObject);
    }

    /**
     * return result
     *
     * @param model the model, as passed on to {@link #renderMergedOutputModel}
     * @return the value to be rendered -&gt; resultObject
     */
    @Override
    protected Object filterModel(Map<String, Object> model) {
        return result;
    }

    /**
     * 返回result
     *
     * @return result
     */
    public Object getResult() {
        return result;
    }

    /**
     * 设置result
     *
     * @param result result
     */
    public void setResult(Object result) {
        this.result = result;
    }

    @Override
    protected void prepareResponse(HttpServletRequest request, HttpServletResponse response) {
        setResponseContentType(request, response);
        response.setCharacterEncoding(getEncoding().getJavaName());
        if (cacheExpires > 0) {
            response.addHeader("Cache-Control", "max-age=" + cacheExpires);
        } else {
            response.addHeader("Pragma", "no-cache");
            response.addHeader("Cache-Control", "no-cache, no-store, max-age=0");
            response.addDateHeader("Expires", 1L);
        }
    }

    private Object result;

    private int cacheExpires = -1;

    /**
     * 返回cacheExpires
     *
     * @return cacheExpires
     */
    public int getCacheExpires() {
        return cacheExpires;
    }

    /**
     * 设置cacheExpires
     *
     * @param cacheExpires cacheExpires
     */
    public void setCacheExpires(int cacheExpires) {
        this.cacheExpires = cacheExpires;
    }
}
